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getnfsquota.c
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/
getnfsquota.c
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/* $NetBSD: getnfsquota.c,v 1.1 2011/03/24 17:05:43 bouyer Exp $ */
/*
* Copyright (c) 1980, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Robert Elz at The University of Melbourne.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1990, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)quota.c 8.4 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: getnfsquota.c,v 1.1 2011/03/24 17:05:43 bouyer Exp $");
#endif
#endif /* not lint */
/*
* Disk quota reporting program.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <quota/quota.h>
#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
#include <rpcsvc/rquota.h>
/* convert a rquota limit to our semantic */
static uint64_t
rqlim2qlim(uint32_t lim)
{
if (lim == 0)
return UQUAD_MAX;
else
return (lim - 1);
}
static int
callaurpc(const char *host, rpcprog_t prognum, rpcvers_t versnum,
rpcproc_t procnum, xdrproc_t inproc, void *in, xdrproc_t outproc, void *out)
{
struct sockaddr_in server_addr;
enum clnt_stat clnt_stat;
struct hostent *hp;
struct timeval timeout, tottimeout;
CLIENT *client = NULL;
int sock = RPC_ANYSOCK;
if ((hp = gethostbyname(host)) == NULL)
return (int) RPC_UNKNOWNHOST;
timeout.tv_usec = 0;
timeout.tv_sec = 6;
memmove(&server_addr.sin_addr, hp->h_addr, hp->h_length);
server_addr.sin_family = AF_INET;
server_addr.sin_port = 0;
if ((client = clntudp_create(&server_addr, prognum,
versnum, timeout, &sock)) == NULL)
return (int) rpc_createerr.cf_stat;
client->cl_auth = authunix_create_default();
tottimeout.tv_sec = 25;
tottimeout.tv_usec = 0;
clnt_stat = clnt_call(client, procnum, inproc, in,
outproc, out, tottimeout);
return (int) clnt_stat;
}
int
getnfsquota(const char *mp, struct ufs_quota_entry *qv,
uint32_t id, const char *class)
{
struct getquota_args gq_args;
struct ext_getquota_args ext_gq_args;
struct getquota_rslt gq_rslt;
struct timeval tv;
char *host, *path;
int ret, rpcqtype;
if (strcmp(class, QUOTADICT_CLASS_USER) == 0)
rpcqtype = RQUOTA_USRQUOTA;
else if (strcmp(class, QUOTADICT_CLASS_GROUP) == 0)
rpcqtype = RQUOTA_GRPQUOTA;
else {
errno = EINVAL;
return -1;
}
/*
* must be some form of "hostname:/path"
*/
path = strdup(mp);
if (path == NULL) {
errno = ENOMEM;
return -1;
}
host = strsep(&path, ":");
if (path == NULL) {
free(host);
errno = EINVAL;
return -1;
}
ext_gq_args.gqa_pathp = path;
ext_gq_args.gqa_id = id;
ext_gq_args.gqa_type = rpcqtype;
ret = callaurpc(host, RQUOTAPROG, EXT_RQUOTAVERS,
RQUOTAPROC_GETQUOTA, xdr_ext_getquota_args, &ext_gq_args,
xdr_getquota_rslt, &gq_rslt);
if (ret == RPC_PROGVERSMISMATCH && rpcqtype == RQUOTA_USRQUOTA) {
/* try RQUOTAVERS */
gq_args.gqa_pathp = path;
gq_args.gqa_uid = id;
ret = callaurpc(host, RQUOTAPROG, RQUOTAVERS,
RQUOTAPROC_GETQUOTA, xdr_getquota_args, &gq_args,
xdr_getquota_rslt, &gq_rslt);
}
free(host);
if (ret != RPC_SUCCESS) {
return 0;
}
switch (gq_rslt.status) {
case Q_NOQUOTA:
break;
case Q_EPERM:
errno = EACCES;
return -1;
case Q_OK:
gettimeofday(&tv, NULL);
/* blocks*/
qv[QUOTA_LIMIT_BLOCK].ufsqe_hardlimit = rqlim2qlim(
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit *
(gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE));
qv[QUOTA_LIMIT_BLOCK].ufsqe_softlimit = rqlim2qlim(
gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit *
(gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE));
qv[QUOTA_LIMIT_BLOCK].ufsqe_cur =
gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks *
(gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE);
qv[QUOTA_LIMIT_BLOCK].ufsqe_time = (tv.tv_sec +
gq_rslt.getquota_rslt_u.gqr_rquota.rq_btimeleft);
/* inodes */
qv[QUOTA_LIMIT_FILE].ufsqe_hardlimit = rqlim2qlim(
gq_rslt.getquota_rslt_u.gqr_rquota.rq_fhardlimit);
qv[QUOTA_LIMIT_FILE].ufsqe_softlimit = rqlim2qlim(
gq_rslt.getquota_rslt_u.gqr_rquota.rq_fsoftlimit);
qv[QUOTA_LIMIT_FILE].ufsqe_cur =
gq_rslt.getquota_rslt_u.gqr_rquota.rq_curfiles;
qv[QUOTA_LIMIT_FILE].ufsqe_time = (int)(tv.tv_sec +
gq_rslt.getquota_rslt_u.gqr_rquota.rq_ftimeleft);
qv[QUOTA_LIMIT_BLOCK].ufsqe_grace =
qv[QUOTA_LIMIT_FILE].ufsqe_grace = 0;
return 1;
default:
/* XXX sert errno and return -1 ? */
break;
}
return 0;
}